INA901-SP Neutron Displacement Damage Characterization
Trademarks
All trademarks are the property of their respective owners.
1 Overview
The INA901-SP device is a voltage-output, current-sense amplifier that can sense drops across shunt resistors at common-mode voltages from –15 V to 65 V, independent of the supply voltage. The INA901-SP operates from a single 2.7-V to 16-V supply, drawing 700 μA (typical) of supply current. The devices are offered in an ultra small, thermally enhanced 8-pin ceramic flatpack package.
General device information and testing conditions are listed in Table 1-1.
| TI Part Number | INA901-SP |
|---|---|
| Device Function | Synchronous Buck Converter |
| Technology | LBCSOI |
| A/T Lot Number / Date Code | 1839A |
| Unbiased Quantity Tested | 15 |
| Exposure Facility | VPT Rad |
| Neutron Fluence (1-MeV equivalent) | 1.0 × 1012, 5.0 × 1012, 1.0 × 1013 n/cm2 |
| Irradiation Temperature | 25°C |
| TI may provide technical, applications or design advice, quality characterization, and reliability data or service providing these items shall not expand or otherwise affect TI's warranties as set forth in the Texas Instruments Incorporated Standard Terms and Conditions of Sale for Semiconductor Products and no obligation or liability shall arise from Semiconductor Products and no obligation or liability shall arise from TI's provision of such items. | |
Figure 1-1 INA901-SP Device2 Test Procedures
The INA901-SP was electrically pre-tested using the production automated test equipment program.
General test procedures were IAW MIL-STD-883, Method 1017 for Neutron Irradiation of INA901-SP.
| Group | Sample Qty | Neutron Fluence (n/cm2) | Bias |
|---|---|---|---|
| A | 5 | 1.0 × 1012 | Unbiased |
| B | 5 | 5.0 × 1012 | Unbiased |
| C | 5 | 1.0 × 1013 | Unbiased |
3 Facility
Devices were exposed via fast neutron irradiation (FNI) at the University of Massachusetts’s Lowell Research Reactor (UMLRR). The facility is designed to give a fast flux level ≥ 1011 n/cm2–s, with relatively low thermal fluence and gamma dose rates. Samples with a cross-sectional area as large as 30 cm (12 in) × 30 cm (12 in) and up to 15-cm (6-in) thick can be irradiated. The fast neutron flux is designed to be nearly uniform over the 30-cm (12-in) × 30-cm (12-in) area facing the core, and the fast fluence variation through the sample thickness is minimized via a single 180° rotation of the sample canister at the midpoint of the irradiation period. The FNI facility offers a significantly larger sample volume than previously available within the University of Massachusetts Lowell Research Reactor (UMLRR).
The fluences are calculated based on 1-MeV equivalences.
Detailed information of the radiation facility is available at the following link:
